<!doctype html>
<html lang="zh">
<head>
	<meta charset="UTF-8">
</head>
<body style="width: 300px">	
    <div width="200px">
      <button style="margin:5px 5px 5px 5px" id="con">popup发送消息给content_scripts</button>
      <button style="margin:5px 5px 5px 5px" id="bg">popup调用background的js函数</button>
      <button style="margin:5px 5px 5px 5px" id="bgtocon">background发送消息给content_scripts</button>
    </div>
</body>
</html>

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/po.js"></script>